Single lumen anastomosis applier for self-deploying fastener
First Claim
Patent Images
1. A surgical instrument comprising:
- a surgical instrument for implanting an anastomotic ring device comprising a woven tube of wire having outer loops or ends which thermally deform and evert when inserted into walls of two adjacent lumens at a luminal interface of an anastomotic site, the ends of the tube everting to form petals in a manner which holds the luminal interface of the anastomotic site into apposition, comprising;
an actuating member formed of a plurality of proximal leaves and a plurality of distal leaves which each leaf outwardly actuates by a cantilevered, hinged relationship to a central portion of the actuating member, configured to receive an anastomotic ring and moveable between a cylindrical, unactuated position and a hollow rivet forming shape in response to a compressive actuating force;
a plurality of distal engaging surfaces, each formed on a respective distal leaf spaced away from the central portion and positioned to engage a selected outer loop of a distal portion of the unactuated, cylindrical anastomotic ring for pulling the engaged outer loop proximally and outwardly during actuation;
a plurality of proximal engaging surfaces, each formed on a respective proximal leaf spaced away from the central portion and positioned to engage a selected outer loop a proximal portion of the unactuated, cylindrical anastomotic ring for pulling the engaged outer loop distally and outwardly during actuation;
a handle including an actuation mechanism for producing the compressive actuating force; and
an elongate cannula connecting the handle to the actuating member and operably configured to position the distal leaves on a distal side of an anastomotic opening and to position the proximal leaves on a proximal side of the anastomotic opening, and configured to transfer the compressive actuating force from the handle to the actuating member wherein the handle is further operably configured to produce the compressive actuating force by producing a proximally directed longitudinal motion and a distally directed longitudinal motion, the elongate cannula operably configured to separately transfer the proximally and distally directed longitudinal motions respectively to distal and proximal portions of the actuating member to pivot corresponding distal and proximal leaves toward each other to actuate the anastomotic ring device from a cylinder shape to a hollow rivet shape, wherein the elongate cannula comprises a first tube connected to the proximal portion of the actuating member and a second tube slidingly received in the tube and connected to the distal portion of the actuating members and a third tube interposed between the first and second tubes and distally engaged to a central portion of the actuating member.
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Accused Products
Abstract
A surgical tool or applier facilitates laparoscopic or endoscopic implantation through a single bodily tissue lumen of an anastomotic ring device for forming a hollow rivet type of attachment between tissue lumens. In addition to forming a puncture between apposite tissue walls at the anastomosis site, the applier assists or wholly actuates the anastomotic ring device and is retracted to deploy the actuated ring device. Illumination incorporated into a distal portion of a cannula enables confirmation of deployment.
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Citations
5 Claims
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1. A surgical instrument comprising:
a surgical instrument for implanting an anastomotic ring device comprising a woven tube of wire having outer loops or ends which thermally deform and evert when inserted into walls of two adjacent lumens at a luminal interface of an anastomotic site, the ends of the tube everting to form petals in a manner which holds the luminal interface of the anastomotic site into apposition, comprising; an actuating member formed of a plurality of proximal leaves and a plurality of distal leaves which each leaf outwardly actuates by a cantilevered, hinged relationship to a central portion of the actuating member, configured to receive an anastomotic ring and moveable between a cylindrical, unactuated position and a hollow rivet forming shape in response to a compressive actuating force; a plurality of distal engaging surfaces, each formed on a respective distal leaf spaced away from the central portion and positioned to engage a selected outer loop of a distal portion of the unactuated, cylindrical anastomotic ring for pulling the engaged outer loop proximally and outwardly during actuation; a plurality of proximal engaging surfaces, each formed on a respective proximal leaf spaced away from the central portion and positioned to engage a selected outer loop a proximal portion of the unactuated, cylindrical anastomotic ring for pulling the engaged outer loop distally and outwardly during actuation; a handle including an actuation mechanism for producing the compressive actuating force; and an elongate cannula connecting the handle to the actuating member and operably configured to position the distal leaves on a distal side of an anastomotic opening and to position the proximal leaves on a proximal side of the anastomotic opening, and configured to transfer the compressive actuating force from the handle to the actuating member wherein the handle is further operably configured to produce the compressive actuating force by producing a proximally directed longitudinal motion and a distally directed longitudinal motion, the elongate cannula operably configured to separately transfer the proximally and distally directed longitudinal motions respectively to distal and proximal portions of the actuating member to pivot corresponding distal and proximal leaves toward each other to actuate the anastomotic ring device from a cylinder shape to a hollow rivet shape, wherein the elongate cannula comprises a first tube connected to the proximal portion of the actuating member and a second tube slidingly received in the tube and connected to the distal portion of the actuating members and a third tube interposed between the first and second tubes and distally engaged to a central portion of the actuating member.
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2. A surgical instrument, comprising:
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a cannula; an actuating member distally and laterally presented on the cannula for receiving a generally cylindrical anastomosis ring and formed of radially spaced proximal leaves and a plurality of distal leaves which each distal leaf outwardly actuates by a cantilevered, hinged relationship to a central portion of the actuating member; a first control operative to compress a longitudinal end of the actuating member toward a center of the actuating member to actuate a respective portion of the received anastomosis ring; a second control operative to compress another longitudinal end of the actuating member toward the center of the actuating member to actuate the other respective portion of the received anastomosis ring forming a hollow rivet shape; wherein the first and second controls are independently actuable to allow independent actuation of either longitudinal end of the actuating member; and wherein the longitudinal end of the actuating member controlled by the first control comprises a distal end positioned with a distal tissue lumen and wherein the longitudinal end of the actuating member controlled by the second control comprises a proximal end positioned within a proximal tissue lumen, the surgical instrument further comprising an illuminator connected to the cannula positioned to illuminate the distal longitudinal end of the actuating member to illuminate an apposition of the two tissue lumens.
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3. A surgical instrument comprising:
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a surgical instrument for implanting an anastomotic ring device comprising a woven tube of wire having outer loops or ends which thermally deform and evert when inserted into walls of two adjacent lumens at a luminal interface of an anastomotic site, the ends of the tube everting to form petals in a manner which holds the luminal interface of the anastomotic site into apposition, comprising; an actuating member formed of a plurality of proximal leaves and a plurality of distal leaves which each leaf outwardly actuate by a cantilevered, hinged relationship to a central portion of the actuating member, configured to receive an anastomotic ring and moveable between a cylindrical, unactuated position and a hollow rivet forming shape in response to a compressive actuating force; a plurality of distal engaging surfaces, each formed on a respective distal leaf spaced away from the central portion and positioned to engage a selected outer loop of a distal portion of the unactuated, cylindrical anastomotic ring for pulling the engaged outer loop proximally and outwardly during actuation; a plurality of proximal engaging surfaces, each formed on a respective proximal leaf spaced away from the central portion and positioned to engage a selected outer loop a proximal portion of the unactuated, cylindrical anastomotic ring for pulling the engaged outer loop distally and outwardly during actuation; a handle including an actuation mechanism for producing the compressive actuating force; an elongate cannula connecting the handle to the actuating member and operably configured to position the distal leaves on a distal side of an anastomotic opening and to position the proximal leaves on a proximal side of the anastomotic opening, and configured to transfer the compressive actuating force from the handle to the actuating member wherein the handle is further operably configured to produce the compressive actuating force by producing a proximally directed longitudinal motion and a distally directed longitudinal motion, the elongate cannula operably configured to separately transfer the proximally and distally directed longitudinal motions respectively to distal and proximal portions of the actuating member to pivot corresponding distal and proximal leaves toward each other to actuate the anastomotic ring device from a cylinder shape to a hollow rivet shape; and an electrical illumination source attached to a distal end of the cannula distal to the actuating member and directing illumination proximally toward the actuating member and comprising a control operably connected proximate to the distal portion of the actuating member. - View Dependent Claims (4, 5)
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Specification